I dont see why not. Aside from the latch style, a YJ isnt any different than a TJ. The doors pictured are the only set that I have built so far. By the sounds of it, there may be more interest than I had originally thought so I could knock a couple sets out. They take a while to build so Im not certain what the cost will be yet. CC, if youd like to Bring your heep up here I could use it as a template for YJs...

Spro, I did toss around the idea of a mirror mount. The one thing I came up with was this...
More often than not, the tube doors will be used on the trail, so a mirror would only hang out in the breeze and smack branches, rocks or trees. The whole point behind the tube door is to protect the passengers and still have the visability and open air feeling of no doors at all. On top of that, Ive found that they are nice to lean on and look out at the tires for nagotiating obstacles. Long story short, a quick fix for the mirror problem is to add a 'post style' CJ mirror. This would be very easy to remove and when left on, will swing back and away from anything it hits.